Week 3 In Class Review Qs — Exam 1

Question 1

A 30 year old man seeks medical attn for a wart-like lesion on his genitals. He recalls a painless ulcer on his genitals over a month ago, but now a rash is appearing on his palms. What is the likely diagnosis for this patient?

A. Rocky Mountain spotted fever
B. Syphilis
C. Epidemic typhus

Answer 1

B. Syphilis

Question 2

A Mexican immigrant presents with thickened cheeks and a deformed nose. Physical exam shows sensory losses in the hands and feet. Which bacterial species should be considered when developing a diagnosis?

A. Mycobacterium tuberculosis
B. Mycobacterium leprae
C. Rickettsia rickettsii

Answer 2

B. Mycobacterium leprae

Question 3

A young woman at an army base thinks she has a cold and goes to the clinic. She complains of malaise, chills, sore throat and dry cough. Chest x-ray shows interstitial infiltrates more severe than expected. Which of these would you consider for diagnosis?

A. Walking pneumonia
B. Influenzae
C. TB

Answer 3

A. Walking pneumonia

Question 4

A 46 yr old HIV+ man presents with fever, chills, night sweats and diarrhea. The pt’s CD4+ T cell count is 50 and he reports progressive weight loss over the past several months. What bacteria is likely responsible for his symptoms?

A. Mycobacterium avium intercellulare
B. Mycobacterium leprae
C. Haemophilus ducreyi

Answer 4

A. Mycobacterium avium intercellulare

Question 5

A 10 yr old boy in Virginia presents with a rash, fever, headache. The rash began on palms and soles and has now spread to his trunk. The boy’s history reveals a hike in the woods last week. What microbe likely is responsible for his symptoms?

A. Rickettsia rickettsii
B. Rickettsia prowazekii
C. Rickettsia typhi

Answer 5

A. Rickettsia rickettsii

Question 6

A woman presents with abdominal pain. On history, the pt reports having many sexual partners. Pelvic exam reveals cervical tenderness and vaginal discharge. What diagnosis is likely?

A. PID
B. Syphilis
C. Genital warts

Answer 6

A. PID

Question 7

A cattle farmer goes to his doctor complaining of a mild cough and fever. Given his occupation, which of the following microbes should be considered for causing his symptoms?

A. Rickettsia rickettsii
B. Chlamydia trachomatis
C. Coxiella burnetii

Answer 7

C. Coxiella burnetii

Question 8

A woman presents with a skin rash expanding on her arm over the past few days. She also complains of fever and headache. When asked if bitten by any insects, she can’t answer definitely but she went on a camping trip last month. You suspect Lyme disease. What is the vector she likely was bitten by while camping?

A. Mosquito
B. Flea
C. Tick

Answer 8

C. Tick